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Hi, I'm Andrian Prasetya, a software engineer with 6+ years of experience building maintainable, reliable, scalable, and high-performance systems using Go, PHP, and TypeScript. I specialize in realtime applications, multi-tenant SaaS platforms, and payments where data consistency, accuracy, and auditability are the hard problems. I enjoy designing product architecture and collaborating closely with product analysts and stakeholders to deliver impactful software. I’m an active open-source maintainer (gopackx) and SaaS builder (cariosan.com), delivering a self-hostable realtime chat infrastructure. I lead efforts to build reusable backend components and robust observability, reliability, and security into complex systems, while contributing to the broader developer community.…Hi, I'm Andrian Prasetya, a software engineer with 6+ years of experience building maintainable, reliable, scalable, and high-performance systems using Go, PHP, and TypeScript. I specialize in realtime applications, multi-tenant SaaS platforms, and payments where data consistency, accuracy, and auditability are the hard problems. I enjoy designing product architecture and collaborating closely with product analysts and stakeholders to deliver impactful software. I’m an active open-source maintainer (gopackx) and SaaS builder (cariosan.com), delivering a self-hostable realtime chat infrastructure. I lead efforts to build reusable backend components and robust observability, reliability, and security into complex systems, while contributing to the broader developer community.

Andrian Prasetya

Full Stack Developer, Back-End Developer, Web Developer, +3

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Hi, I'm Andrian Prasetya, a software engineer with 6+ years of experience building maintainable, reliable, scalable, and high-performance systems using Go, PHP, and TypeScript. I specialize in realtime applications, multi-tenant SaaS platforms, and payments where data consistency, accuracy, and auditability are the hard problems. I enjoy designing product architecture and collaborating closely with product analysts and stakeholders to deliver impactful software. I’m an active open-source maintainer (gopackx) and SaaS builder (cariosan.com), delivering a self-hostable realtime chat infrastructure. I lead efforts to build reusable backend components and robust observability, reliability, and security into complex systems, while contributing to the broader developer community.…Hi, I'm Andrian Prasetya, a software engineer with 6+ years of experience building maintainable, reliable, scalable, and high-performance systems using Go, PHP, and TypeScript. I specialize in realtime applications, multi-tenant SaaS platforms, and payments where data consistency, accuracy, and auditability are the hard problems. I enjoy designing product architecture and collaborating closely with product analysts and stakeholders to deliver impactful software. I’m an active open-source maintainer (gopackx) and SaaS builder (cariosan.com), delivering a self-hostable realtime chat infrastructure. I lead efforts to build reusable backend components and robust observability, reliability, and security into complex systems, while contributing to the broader developer community.

Available to hire

Hi, I’m Andrian Prasetya, a software engineer with 6+ years of experience building maintainable, reliable, scalable, and high-performance systems using Go, PHP, and TypeScript. I specialize in realtime applications, multi-tenant SaaS platforms, and payments where data consistency, accuracy, and auditability are the hard problems. I enjoy designing product architecture and collaborating closely with product analysts and stakeholders to deliver impactful software.

I’m an active open-source maintainer (gopackx) and SaaS builder (cariosan.com), delivering a self-hostable realtime chat infrastructure. I lead efforts to build reusable backend components and robust observability, reliability, and security into complex systems, while contributing to the broader developer community.

Skills

Experience Level

Expert

Expert

Expert

Expert

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Expert

Expert

Expert

Expert

Expert

Expert

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Expert

Expert

Expert

Expert

Language

Indonesian

Fluent

English

Advanced

Work Experience

Senior Software Engineer (Contract - Fulltime) at PT Pinus Merah Abadi (Nabati Group)

January 1, 2026 - June 1, 2026

Maintained Action Proposal & Claim budget proposal, claim workflow, multi-level approval engine, SAP integration, and automated PDF/Excel reporting (Puppeteer, pdfmake, ExcelJS) on Node.js/AdonisJS, with CI/CD via GitLab, Jenkins and SonarQube quality gates. Maintained Finance Collection — an end-to-end accounts-receivable and collections system: AR & tax invoicing, invoice verification, payment confirmation, deduction logic, master data, realtime AR reconciliation, and end-to-end audit trail (Go 1.24, Fiber v2, MySQL, MinIO, Vault, etcd, Docker).

Senior Software Engineer (Contract – Fulltime) at PT Pinus Merah Abadi (Nabati Group)

January 1, 2026 - June 1, 2026

Maintained the Action Proposal & Claim budget proposal, claim workflow, multi-level approval engine, SAP integration, and automated PDF/Excel reporting on Node.js/AdonisJS, with CI/CD via GitLab, Jenkins, and SonarQube quality gates.

Senior Software Engineer (Freelance - Flexible Time) at Kapturise

December 1, 2025 - June 1, 2026

Led backend for Klicks, an event-photo platform with face-filtered gallery filtering; designed microservices, async face-matching pipeline, and Kubernetes deployment. Built a Rekognition-based recognition worker with a RabbitMQ pipeline, plus an organizer dashboard and a cross-region Rekognition setup for data residency.

Lead Backend Engineer (Freelance - Flexible Time) at PT Spend Group Internasional

June 1, 2025 - June 1, 2026

Designed system architecture for Swipe (iswipe.tv), a live-streaming platform; implemented a two-stage host verification pipeline (liveness + face matching) to prevent impersonation; integrated Tencent TRTC live streaming, Tencent IM chat, and payments; decomposed a legacy PHP monolith into 8 services and led OAuth gateway deployment.

Fullstack Developer (Permanent – Fulltime) at PT Prima Sentra Abadi

September 1, 2023 - January 1, 2026

Developed a full-stack finance web application; led backend for the Payment Orchestration Platform unifying 6+ Indonesian banks/providers with a single contract format, journal accounting, and end-to-end audit trail; built Event-Hub multi-tenant and provider adapters; implemented automated reconciliation and a double-entry ledger with RBAC and dashboards.

Backend Developer (Contract – FullTime) at PT Invesku Dana Bersama (Hailegal)

April 1, 2021 - August 1, 2023

Designed backend and frontend for a legal-services app; led payment gateway integration; implemented in-app realtime chat, document management, scheduling with reminders, RBAC, admin dashboard, invoicing, e-signature, case tracking, and search features.

Backend Developer (Contract – FullTime) at PT Pacifica Raya Teknologi

August 1, 2020 - March 1, 2021

Independently developed and shipped POS order and promo modules; implemented end-to-end order lifecycle REST API, multi-mode checkout, split payments, Xendit gateway integration, reporting, real-time stock movement, and a double-entry accounting ledger.